回複：能出境,隻要確定已經受理了即可。有A號碼就可以調出全部資料

Hi, XiaoBaiTu
How do I get the A number before I get the 485 receipt? My situation: called USCIS, got the 485 receipt number two weeks ago, but haven't got the receipt so far, and I need to travel outside of the US next week. When I come back, what do I need to show the immigration officer at the boarder?
Many thanks...